IYPT 2004, Задачи на турнира — Задача 12. Kundt’s Tube

17th IYPT (2004)

Заглавие в източника

Source: iypt.org, tmfsr.sk, Oct. 28, 2003
Selected at the IOC Meeing in Modra, Harmonia on Oct. 17—18, 2003
Exemplary solutions for 2004 →

Условие

In a ‘Kundt’s Tube’ type of experiment the standing waves produced can be made visible using a fine powder. A closer look at the experiment reveals that the regions of powder have a sub-structure. Investigate its nature.

Решение

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Оригинал в Архива: 2004.txt